Vending machine and vending method and vending system therefor

A non-transitory computer readable storage medium, having executable instructions stored therein that, when executed by a processor, configure the processor to implement acts comprising:

• acquiring a weight of a product on a shelf of a vending device before and after a vending operation of the vending device;
• determining a weight change between the weight before the vending operation and the weight after the vending operation;
• and
• issuing an alarm prompt in response that it is determined that the weight change is less than a first weight change threshold, and the first weight change threshold being less than or equal to zero;
• capturing images of the product on the shelf before and after the vending operation;
• issuing an alarm prompt in response to that it is determined according to the images before and after the vending operation that the product on the shelf increases;
• and
• controlling, one or more of the act of the acquiring the weight or the capturing the images in response to detecting a gesture, a door opening signal, and a door closing signal.

A vending machine, comprising:

• a machine body, a door body, and at least one shelf installed inside the machine body;
• a weighing device, disposed at a bottom of the shelf and configured to acquire weight of a product on the shelf before and after a vending operation;
• a processing device, coupled to the weighing device and configured to calculate a weigh change between the weight of the product on the shelf before the vending operation and the weight of the product on the shelf after the vending operation, and issue a prompt control signal in response to the weigh change is less than a first weight change threshold, wherein the first weight change threshold is less than or equal to zero;
• a prompting device, coupled to the processing device and configured to issue an alarm prompt based on the prompt control signal,
• an imaging device, coupled to the processing device and configured to capture images of the product on the shelf before and after the vending operation;
• and
• an infrared sensing device, disposed in the machine body and coupled to the processing device,
• wherein:
• the processing device is configured to determine based on the images before and after the vending operation that the product on the shelf increases, and to issue the prompt control signal;
• the processing device is configured to control the weighing device and the imaging device to start in response to that the infrared sensing device detects that a hand leaves;
• and
• the processing device is configured to control the weighing device and the imaging device to start in response to a door opening signal or a door closing signal is detected.

A vending system, comprising:

• a vending machine, comprising:
• a machine body, a door body, and at least one shelf installed inside the machine body;
• a weighing device, disposed at a bottom of the shelf and configured to acquire weight of a product on the shelf before and after a vending operation;
• an imaging device, configured to capture images of the product on the shelf before and after the vending operation;
• a communicating device, configured to upload the weight and the images of the product on the shelf before and after the vending operation;
• a processing device, coupled to the weighing device, the imaging device and the communicating device, respectively;
• a prompting device, coupled to the processing device and configured to issue an alarm prompt based on a prompt control signal;
• and
• an infrared sensing device, disposed in the machine body and coupled to the processing device, wherein the processing device is configured to control the weighing device and the imaging device to start in response to that the infrared sensing device detects that a hand leaves, and is configured to control the weighing device and the imaging device to start in response to a door opening signal or a door closing signal is detected;
• and
• a server, configured to obtain first vending information based on a weight change of the product on the shelf before and after the vending operation, identify the images of the product on the shelf before and after the vending operation to obtain second vending information, determine final vending information based on the first vending information and the second vending information, and issue the prompt control signal in response to it is determined that the product on the shelf increases after vending.